The invention relates to agricultural machinery, in particular to devices for loosening compacted soil in the tractor tracks.Sledorazryhlitel tractor, containing attached to the cross bars side sections, each of which contains rippers front and rear rows with knife racks and legs, a drive battery of tooth disks ploskorezy, each of which rod-blade rink installed. Racks rippers front and back rows are made tiered and inclined in opposite directions in the direction of travel of the tractor eradicators respectively by the angle al <90 ° and a2> 90 °, while the upper tier foot mounted on the front edge of the upper tier racks on the distance H within 0.5a 0.6a (N = 0.5a... 0.6a) With respect to the bit legs of the lower tier, attached to the front edge of the bottom tier of the rack with the possibility of adjusting the horizontal, with the contour of the cutting edge of each tooth is made straight and is provided with a cut-out teeth. At the same socks bit lower tier and upper tier tabs lie on a straight line parallel to the back edge of the cultivator strut and the distance between them is determined by the formula:Where a - Tillage depth α2 - the angle between the rear edge of the lower tiers of the rack and the upper edge of the foot of the lower tier, parallel to the horizontal axis X.Also, the front edge of the upper tier of the rack is made as a curved blade, the convexity of which faces against movement sledorazryhlitelya tractor. And the width of the upper tier legs 50% (twice) over widths foot of the lower tier, and the front edge of each tooth is in the form of the clutches of a straight line and is located under the sliding angle.Such design will improve the quality of treatment in the compacted soil tracks tractor as a result of the implementation of stab resistant rippers inclined with respect to the course of movement of the unit and the installation on the front edge of rippers horizontally into two layers. It promotes quality by cutting the soil sliding
